Here are some positive things Caesar did. Caesar was known for his clemency. So, when he fought against Pompey, he did not kill everyone who went against him. In fact, he pardoned them. So, he was a person who stemmed further bloodshed. Caesar was also very tolerant when it came to religion. For example, he granted freedom to the Jews in Rome.

As for negative points, Caesar was a man of war. He was not able to "fix" Rome from incessant war. Under his watch, he fought other Romans and his ambition got him killed.